Door hinge



DOOR HINGE v Filed July 5, 1921. 2 Sheets-Sheet l 30, Dawn) k1 R surv y March 31. 1925.

J. DAVIES DOOR HINGE 2 Sheets-Sheet, 2

Filed July 5, 1921 Patented Mar. 351, 1925.

unrrn era-res JOHN avies, on trvnazeoon, usiness.

- IDOO R HINGE.

Application filed Ju1y'5, 1921. Serial No. 482,564.

To aZZ whom it may concern:

Be it known thatI, JOHN DAVIES, asubjeot of the King of Great Britain, and a resident of Liverpool, England, have invented certain new and useful Improvements in and lielatingtolDoor Hinges, of which the following is a specification.

It is: desirable in the case, of theheavier class of doors, such as those used for closing cold storage or the like chambers to have some means whereby the door may be easily adjusted in order properly to fit the door framing. This is particularly the case with the doors of cold storage chambers as, besides being extremely heavy and liable to be hung inaccurately, they have chamfered or flared faces which require to bed properly with the corresponding ohamfered framework in order to make an eflicienttight joint. The present invention is directed, therefore, to the provision of means whereby such heavy doors may readily be adjusted to a correct position relatively to the framing.

According to this invention, the door is carried from hinges upon the straps of which it is adjustable longitudinally so as to provide for lateral adjustment of the door relatively to its framing, and the hinges are also adjustable vertically on the gudgeon or pivot pins of the hinges so as to provide for vertical adjustment of the door relatively to its framing. The udgeon or pivot pins of the hinge are so carried from the door frame as to provide for their adjustment in a direction at right angles to the plane of the door frame. In this way a lateral and vertical adjustmentof the door in its framework is provided, as also an adjustment inward or outward relatively to the plane of the frame.

The invention is illustrated in the accompanying drawings in which Fig. 1, is an elevation and Fig. 2, a sectional plan on the line AA Fig. 1. Fig. 3, is a fragmentary detail section of the hinge to a larger scale, and Fig. 4c, is a plan in section of the bracket for supportingthe gudgeon pin of the hinge. Fig. 5, is a section through the hinge and door frame in a plane at right angles to Fig. 3.

In carrying out the invention, the door 1 is carried from hinges, the strap 2 of which instead of being fixedly secured to the door engages slidably within or upon a back plate 3, which is secured to the door. The back plate 3 may be of channel section with flanges 4. Thehinge. strap 2 is slotted at 5 and a series of bolts6 on the backplate pass throughthc slots and are fitted with nuts. Means are. provided for adjustingther bolts. after adjustment being tightened. In

this way lateral adjustment of the door is provided for. The adjusting movement of the back plate 3 relatively to the hinge strap may be effected by forming a lug 7 on the back plate, through an aperture in which a threaded stem 8 on the end of the hinge strap passes, nuts 9 threaded on the stem engaging the lug 7 of the back plate 3 on both sides, so that by turning the nuts the door may be adjusted longitudinally of the hinge straps 2 and then looked in position by tightening the nuts 6. Besides this lateral adjustment of the door, a vertical adjustment is provided for by fitting the knuckle 10 of the hinge strap over the pivotal or gudgeon pin 11 of the hinge on the door framing 12 and providing the knuckle 10 with an adjusting bolt or screw 13 threaded therein, the tip of the screw engaging the top of the pivot pin 11. Consequently, by screwing the adjusting screws in or out of the knuckles the hinge straps with their back plates may be raised or lowered relatively to the pivot pins 10 and vertical adjustment of the door in its frame 12 thus obtained. Preferably a lock nut 14 is provided by means of which after adjustment of the screws 13 they may be setand the tops of the pivot pins 10 may be well rounded and the tips of the adjusting screws correspondingly recessed, so that when the screw tips and the ends of the gudgeon pins are in engagement suitable pivot bearings are provided upon which the 'door may swing.

If desired, the pivot or gudgeon pin 11 may be carried from a bolt 15 which passes through the door frame, the shank of the bolt being squared at 16 to enter a corresponding recess 17 in the back plate 18 of a bracket 19 which supports the knuckle 20 of the gudgeon pin, the lower part of the bracket having a table plate 21 upon which the gudgeon knuckle 20 rests and through which plate screws 22 are passed to engage the boss and lock it in position. The apertures 23-Fig. 5, in the bracket plate through which the screws 22 pass are preferably elongated Fig. 4. In a direction at right angles to the plane of the door, so that the distance of the gudgeon pin or pivot 11 relatively to the door frame may be adjusted and then looked at any adjusted position by tightening up the screws 22. In this Way adjustment of the door in a direction at right angles to the plane of the door frame may be effected, to ensure that the door shall close tightly in its frame.

By means, therefore, of suspending a door in the way'described, after the door has been hung vertical and lateral adjustment of the door in the same plane are provided for, and an adjustment for depth at right angles to the other adjustments is also obtained, a great economy of time and skilled labour in causing the door to fit accurately being etl'ected.

I claim:

A door hinge comprising, a pivot, a hinge strap engaging the pivot, slots in the strap, a threaded stem on the strap, a back plate secured to the door, a lug on the back plate with Which the stem engages, bolts on the 7 back plate engaging the strap, and nuts on the stem engaging the lug by which the back plate and door are adjusted on the strap.

In testimony whereof I afiix my signature in presence of two witnesses.

JOHN DAY IES. lVitnesses W. A. Jones, A. J. DAVIES. 

